Please kindly note that the device is programmed to timeout every few minutes if you are streaming through our VTDU servers. You can simply tap on the "Continue" button to continue streaming. Besides, if your device supports the LAN Live View feature, you can avoid this by putting your camera and your phone or PC under the same LAN (connecting to the same network), and then going to the More page (click the profile photo on the left top corner) > Settings > LAN Live View (for mobile phone) or Devices on LAN (for PC Studio). There you could view the camera continuously.
However, even when you are on the same network, you should ensure that the computer you are using is connected to the router using a cable, or if you are using a mobile phone or tablet, please ensure that you have Upnp enabled on your router.